Results 1 to 10 of about 113 (105)
Global Journal of Engineering and Technology Advances, 2023 The comparative study of some effects of natural and artificial pozzolans on the hydraulic properties of Portland cement mortar is performed in this work. The natural pozzolan used coming from the Djoungo deposit, Moungo department in the Littoral region (Cameroon) was finely ground and then sieved at 100 μm.
Blaise Ngwem Bayiha +5 more
exaly +3 more sources
Case Studies in Construction Materials, 2023 This study illustrates the effect of incorporating natural pozzolan (NP) and silica fume (SF) in cement-based mortars on the compressive strength. Up to 40% of the weight of cement in cement mortars can be replaced by NP powder.
Hany A. Dahish +4 more
doaj +3 more sources
Properties of Artificial Lightweight Aggregates from Various Pozzolan Materials – A Review [PDF]
Archives of Metallurgy and MaterialsThe use of lightweight aggregate can bring advantages to the construction field. Lightweight aggregate has been used due to its lower density and can reduce the dead load applied to the structural elements. Due to the number of natural resources, such as
D.L. Chuan Hao +4 more
doaj +2 more sources
Study of Mortars Made with Natural and Artificial Pozzolans
Journal of Materials and Engineering Structures, 2019 The objective of this work is to evaluate the thermal activation potential of clay soils, particularly the clay fraction of dam mud, for the production of artificial pozzolan which can be substituted to cement in concrete and mortars applications and ...
Imene LAOUFI +3 more
doaj +1 more source
An ANN to Predict Sorptivity and Water Absorption of Concrete Made with Industrial Waste and Artificial Sand [PDF]
Computational Engineering and Physical Modeling, 2023 Large-scale cement and natural fine aggregate use in construction has negative environmental effects. In light of this issue, crushed sand is a good material, and wastes from industries such as metakaolin, Furness ash, blast furnace slag, and micro ...
Kiran Mane +4 more
doaj +1 more source
Evaluation of Pozzolanic Reactivity of Artificial Pozzolans [PDF]
Materials Science Forum, 2012 Pozzolanicity is a very interesting issue regarding building materials, as a way to enhance mortars and concrete durability. This property results from the reaction between calcium hydroxide and silica and alumina based materials. Different types of natural and artificial pozzolans show pozzolanic activities that differ depending on the materials ...
Pontes, J. +2 more
openaire +3 more sources
Concretes with binary mixtures of artificial pozzolans and concrete demolition waste [PDF]
Ambiente Construído, 2020 Abstract The objective of this study is to analyse the use of binary mixtures of pozzolanic materials and concrete demolition waste in concrete mixtures, especially the resulting mechanical properties and durability. A total of ten concrete formulations were produced distinguishing them in different types using different Portland cements, different ...
Cristian Jonathan Franco de Lima +3 more
openaire +4 more sources
Hydraulic lime with the use of pozzolanic additives [PDF]
Нанотехнологии в строительствеIntroduction. In the past, air and hydraulic lime were primary materials in building constructions. Due to the limited production of hydraulic lime in Russia, it is of interest to study the possibility of replacing natural hydraulic lime NHL in ...
Valentina I. Loganina +2 more
doaj +1 more source
Yapay Puzolanların Kendiliğinden Yerleşen Betonlarda Kapilarite ve Basınç Dayanımına Etkisi
Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2014 Bu çalışmada iki farklı yapay puzolanın kendiliğinden yerleşen betonlarda kapilarite ve basınç dayanımına etkisi araştırılmıştır. Çalışmada yapay puzolan olarak uçucu kül ve yüksek fırın cürufu %20,%40 ve %60 oranında çimentoya ikame edilerek ...
Ahmet Beycioğlu, H. Yılmaz Aruntaş
doaj +6 more sources
Journal of Building Materials and Structures, 2020 This paper presents research on the use of artificial neural networks (ANNs) to predict fresh and hardened properties of self compacting concrete (SCC) made with Algerian materials.
Mohamed Sahraoui, Tayeb Bouziani
doaj +1 more source